CSX S-Line
E189411
The CSX S-Line is a major freight rail corridor in the CSX Transportation network, running through the southeastern United States and connecting key regional routes and terminals.
All labels observed (5)
| Label | Occurrences |
|---|---|
| CSX S-Line canonical | 3 |
| CSX Transportation S Line | 1 |
| CSX Transportation line | 1 |
| CSX Transportation rail line | 1 |
| CSX freight trains | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1632365 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: CSX S-Line Context triple: [CSX A-Line, hasJunctionWith, CSX S-Line]
-
A.
CSX A-Line
The CSX A-Line is a major north–south freight and passenger rail corridor in the southeastern United States, running primarily through Florida and used by Amtrak’s Silver Meteor service.
-
B.
CSX Transportation
CSX Transportation is a major U.S. freight railroad company operating an extensive rail network across the eastern United States.
-
C.
CSX Capital Subdivision
CSX Capital Subdivision is a CSX Transportation rail line in Maryland that serves as a key freight and commuter corridor between Washington, D.C., and Baltimore.
-
D.
CSX RF&P Subdivision
The CSX RF&P Subdivision is a major CSX Transportation rail line in Virginia that forms part of the busy freight and passenger corridor linking Washington, D.C. with Richmond and points south.
-
E.
Trinity Railway Express
Trinity Railway Express is a commuter rail service connecting Dallas and Fort Worth, Texas, providing regional passenger transportation across the Dallas–Fort Worth metroplex.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: CSX S-Line Target entity description: The CSX S-Line is a major freight rail corridor in the CSX Transportation network, running through the southeastern United States and connecting key regional routes and terminals.
-
A.
CSX A-Line
The CSX A-Line is a major north–south freight and passenger rail corridor in the southeastern United States, running primarily through Florida and used by Amtrak’s Silver Meteor service.
-
B.
CSX Transportation
CSX Transportation is a major U.S. freight railroad company operating an extensive rail network across the eastern United States.
-
C.
CSX Capital Subdivision
CSX Capital Subdivision is a CSX Transportation rail line in Maryland that serves as a key freight and commuter corridor between Washington, D.C., and Baltimore.
-
D.
CSX RF&P Subdivision
The CSX RF&P Subdivision is a major CSX Transportation rail line in Virginia that forms part of the busy freight and passenger corridor linking Washington, D.C. with Richmond and points south.
-
E.
Trinity Railway Express
Trinity Railway Express is a commuter rail service connecting Dallas and Fort Worth, Texas, providing regional passenger transportation across the Dallas–Fort Worth metroplex.
- F. None of above. chosen
Statements (20)
| Predicate | Object |
|---|---|
| instanceOf |
freight rail corridor
ⓘ
railway line ⓘ |
| belongsTo | Class I railroad network ⓘ |
| connects |
freight terminals
ⓘ
regional routes ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| electrification | non-electrified ⓘ |
| hasAccessRestriction | freight only ⓘ |
| hasFunction | interregional freight corridor ⓘ |
| hasInfrastructureType |
double-track segments
ⓘ
single-track segments ⓘ |
| hasTrafficType | freight ⓘ |
| isMajorComponentOf | CSX mainline system ⓘ |
| locatedIn |
Southeastern United States
ⓘ
linked to:
Southern United States
|
| operator | CSX Transportation ⓘ |
| owner | CSX Transportation ⓘ |
| partOf | CSX Transportation network ⓘ |
| railGauge | standard gauge ⓘ |
| trackType | heavy rail ⓘ |
| usedFor | freight transportation ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: CSX S-Line Description of subject: The CSX S-Line is a major freight rail corridor in the CSX Transportation network, running through the southeastern United States and connecting key regional routes and terminals.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: CSX S-Line
linked to: CSX S-Line
linked to: CSX S-Line
linked to: CSX S-Line
subject linked to:
Amtrak Silver Star route